Lexmark Laser Printers Label Manual page 54

Maintenance Procedures
If the print quality begins to degrade when printing sheets of labels, we suggest you follow the three
cleaning steps below:
1
Print 5 sheets of paper.
2
Wait approximately 5 seconds.
3
Print 5 more sheets of paper.
To maintain printer feeding reliability, repeat this cleaning process every time you replace the print
cartridge, more often with some media. Failure to follow maintenance procedures could cause
jamming, poor print quality, feeding problems, and fuser problems.
Lexmark E320, E322
54